ASTM E190-14

Standard Test Method for Guided Bend Test for Ductility of Welds

SIGNIFICANCE AND USE
5.1 The guided bend test as described in this test method is used to evaluate the quality of welds as a function of ductility as evidenced by their ability to resist cracking during bending.
SCOPE
1.1 This test method covers a guided bend test for the determination of soundness and ductility of welds in ferrous and nonferrous products. Flaws, not shown by X rays, may appear in the surface of a specimen when it is subjected to progressive localized overstressing. This guided bend test has been developed primarily for plates and is not intended to be substituted for other methods of bend testing.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2014
• ICS: 25.160.40 - Welded joints and welds
• Technical Committee: E28 - Mechanical Testing
• Drafting Committee: E28.02 - Ductility and Formability

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E190 − 14
Standard Test Method for
1
Guided Bend Test for Ductility of Welds
This standard is issued under the fixed designation E190; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3.2 Additional welding terms including defect,
discontinuity, flaw, thermal cutting, weld root, weld face, and
1.1 This test method covers a guided bend test for the
weldment are defined in AWS A3.0M/A3.0:2010.
determination of soundness and ductility of welds in ferrous
and nonferrous products. Flaws, not shown by X rays, may
4. Summary of Test Method
appear in the surface of a specimen when it is subjected to
4.1 The specimen is bent in a U-shaped die by means of a
progressive localized overstressing. This guided bend test has
centrally applied force to the weldment in a flat specimen
been developed primarily for plates and is not intended to be
supported at two positions equidistant from the line of force
substituted for other methods of bend testing.
application. The specimen is forced into the die by a plunger
1.2 The values stated in inch-pound units are to be regarded
having the shape necessary to produce the desired contour.The
as standard. The values given in parentheses are mathematical
convex surface of the bent specimen is examined for cracks or
conversions to SI units that are provided for information only
other open flaws.
and are not considered standard.
5. Significance and Use
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5.1 The guided bend test as described in this test method is
responsibility of the user of this standard to establish appro- used to evaluate the quality of welds as a function of ductility
priate safety and health practices and determine the applica-
as evidenced by their ability to resist cracking during bending.
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents 6.1 The guided bend test jig is shown in Fig. 1.
2
2.1 ASTM Standards:
7. Sampling
E6 Terminology Relating to Methods of Mechanical Testing
7.1 Sample accord with the requirements of relevant speci-
2.2 AWS Standard:
fications and codes.
AWSA3.0M/A3.0 Standard Welding Terms and Definitions;
Including Terms for Adhesive Bonding, Brazing, 8. Test Specimens
3
Soldering, Thermal Cutting, and Thermal Spraying
8.1 The types of specimens generally used for guided bend
testing are rectangular ones machined from plates and pipes.
3. Terminology
The weld-face surface of the flat specimen contains the greater
3.1 Terms in this standard are defined in E6 Terminology width of the weld material, while the opposite side is called the
Relating to Methods of Mechanical Testing. weld-root surface.
8.1.1 Transverse Side Bend—The weld is transverse to the
longitudinal axis of the specimen, which is bent so that either
oneofthesidesurfacesbecomestheconvexsurfaceofthebent
1
This test method is under the jurisdiction of ASTM Committee E28 on
specimen (Fig. 2 and Fig. 3).
Mechanical Testing and is the direct responsibility of Subcommittee E28.02 on
Ductility and Formability.
8.1.2 Transverse Face Bend—The weld is transverse to the
Current edition approved May 1, 2014. Published September 2014. Originally
longitudinal axis of the specimen, which is bent so that the
approved in 1961. Last previous edition approved in 2008 as E190 – 92 (2008).
weld-face surface becomes the convex surface of the bent
DOI: 10.1520/E0190-14.
2
specimen (Fig. 4).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
8.1.3 Transverse Root Bend—The weld is transverse to the
Standards volume information, refer to the standard’s Document Summary page on
longitudinal axis of the specimen, which is bent so that the
the ASTM website.
3
weld-root surface becomes the convex surface of the bent
Available from American Welding Society (AWS), 8669 NW 36 Street, #130,
Miami, FL 33166-6672, http://www.aws.org. specimen (Fig. 4).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E190 − 14
Thickness of Specimen
A, in. (mm) B, in. (mm) C, in. (mm) D, in. (mm)
in. (mm)
3 1 3 3 3
⁄8 (9.5) 1 ⁄2 (38) ⁄4 (19) 2 ⁄8 (60) 1 ⁄16 (30)
1 1 1 3 3
⁄8 (3.2) 2 ⁄8 (54) 1 ⁄16 (27) 2 ⁄8 (60) 1 ⁄16 (30)
1 1
t 4t 2t 6t + ⁄8 ( + 3.2) 3t + ⁄16(+1.6)
NOTE 1—Either hardened and greased shoulders o
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E190 − 92 (Reapproved 2008) E190 − 14
Standard Test Method for
1
Guided Bend Test for Ductility of Welds
This standard is issued under the fixed designation E190; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This test method covers a guided bend test for the determination of soundness and ductility of welds in ferrous and
nonferrous products. Defects,Flaws, not shown by X rays, may appear in the surface of a specimen when it is subjected to
progressive localized overstressing. This guided bend test has been developed primarily for plates and is not intended to be
substituted for other methods of bend testing.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
NOTE 1—For additional information see Terminology E6, and American Welding Society Standard D 1.1.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
E6 Terminology Relating to Methods of Mechanical Testing
2.2 AWS Standard:
D1.1AWS A3.0M/A3.0 Structural Welding Code, SteelStandard Welding Terms and Definitions; Including Terms for Adhesive
3
Bonding, Brazing, Soldering, Thermal Cutting, and Thermal Spraying
3. Terminology
3.1 Terms in this standard are defined in E6 Terminology Relating to Methods of Mechanical Testing.
3.2 Additional welding terms including defect, discontinuity, flaw, thermal cutting, weld root, weld face, and weldment are
defined in AWS A3.0M/A3.0:2010.
4. Summary of Test Method
4.1 The specimen is bent in a U-shaped die by means of a centrally applied force to the weldment in a flat specimen supported
at two positions equidistant from the line of force application. The specimen is forced into the die by a plunger having the shape
necessary to produce the desired contour. The convex surface of the bent specimen is examined for cracks or other open
defects.flaws.
5. Significance and Use
5.1 The guided bend test as described in this test method is used to evaluate the quality of welds as a function of ductility as
evidenced by their ability to resist cracking during bending.
1
This test method is under the jurisdiction of ASTM Committee E28 on Mechanical Testing and is the direct responsibility of Subcommittee E28.02 on Ductility and
Formability.
Current edition approved Sept. 1, 2008May 1, 2014. Published January 2009September 2014. Originally approved in 1961. Last previous edition approved in 20032008
as E190 – 92 (2003).(2008). DOI: 10.1520/E0190-92R08.10.1520/E0190-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from The American Welding Society (AWS), 550 NW LeJeune Rd., 8669 NW 36 Street, #130, Miami, FL 33126.33166-6672, http://www.aws.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E190 − 14
6. Apparatus
6.1 The guided bend test jig is shown in Fig. 1 (see Explanatory Notes at end of this test method).
6. Sampling
6.1 Sampling is performed in accordance with the requirements of relevant specifications and codes.
7. Sampling
7.1 Sample accord with the requirements of relevant specifications and codes.
7. Test Specimens
7.1 The types of specimens generally used for guided bend testing are rectangular ones machined from plates and pipes. The
face surface of the flat specimen contains the greater width of the weld material, while the opposite side is called the root surface.
7.1.1 Transverse Side Bend—The weld is transverse to the longitudinal axis of the specimen which is bent so that either one
of the side surfaces becomes the convex surface of the bent speci
...